The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 01, 2005
Filed:
Sep. 10, 2001
Hisato Oshima, Takefuj, JP;
Takeshi Shikama, Yokaichi, JP;
Junichi Hamatani, Matsumoto, JP;
Iwao Fukutani, Shiga-ken, JP;
Kenichi Saito, Fukui-ken, JP;
Hisato Oshima, Takefuj, JP;
Takeshi Shikama, Yokaichi, JP;
Junichi Hamatani, Matsumoto, JP;
Iwao Fukutani, Shiga-ken, JP;
Kenichi Saito, Fukui-ken, JP;
Murata Manufacturing Co., Ltd., Kyoto, JP;
Abstract
A method for manufacturing an inductor is performed in such a manner that the surface of a metal wire provided with an insulating film thereon is coated with a thermal melting resin. The thickness of the thermal melting resin is, for example, approximately 1 μm. As the thermal melting resin, a thermoplastic resin or a thermosetting resin, such as a polyimide resin or an epoxy resin, containing 85 wt % of a powdered ferrite is used. This coated metal wire is densely wound to form a solenoid-type coil conductor. Next, the thermal melting resin is softened by a heat treatment at, for example, 180° C. and is then solidified by spontaneous cooling. Accordingly, the portions of the coil conductor adjacent to each other are bonded together by the thermal melting resin.